It's seems very obvious the Jewish people, after creating the body for the Christ to use, and therefore done being used by good would of course then be used as evil as a placeholder for the anti-christ. Evil is truly wicked. (This has happened throughout human history) evil always uses goods' discarded shells.
So the rainbow to me is a reminder that the spiritual world and therefore the Creator, is still there and the plan is still going now matter how it may look on earth. I guess that's the same as covenant?
Well, I already posted links in my previous comments. Take care.